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  • K7RA Solar Update

    06/14/2013 | The K7RA Solar Update

    The K7RA Solar Update
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  • latest101812

    10/19/2012 | The K7RA Solar Update

    Sunspot activity rose this week, with the average daily sunspot numbers up more than 45 points to 97, while the average daily solar flux rose more than 24 points to 129.2.
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  • latest092812.jpg

    09/28/2012 | The K7RA Solar Update

    The average daily sunspot numbers rose this week from 56 to 81.3, while the average daily solar flux increased from 101.4 to 129.7.
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  • latest112311

    11/23/2011 | The K7RA Solar Update

    Not much in the way of solar excitement this week, except there are many sunspots, but the solar activity in terms of flares or coronal mass ejections is low. The overlapping (by one day) average sunspot numbers in this bulletin declined 21 points to 124.
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  • latest102811

    10/28/2011 | The K7RA Solar Update

    The day that last week’s bulletin was released --Friday, October 21 -- the daily sunspot number broke another record for Solar Cycle 24 when it rose to 207. You have to look back to November 26, 2003 when it was two points higher – 209 -- to find a number
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  • latest081811

    08/19/2011 | The K7RA Solar Update

    Solar activity was down again this week. The sunspot number on Sunday, August 14 went all the way to 0 for the first time since January 27, which was 29 weeks ago. The average daily sunspot numbers declined nearly 50 points, to 25.6, while the average dai
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  • latest051911

    05/20/2011 | The K7RA Solar Update

    We saw a decline in sunspot activity this week with a 23 point drop in the average daily sunspot numbers and a nearly 9 point decline in the average daily solar flux. These compare, of course, to the numbers for the previous reporting week, which always r
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  • sunspot091610

    09/17/2010 | The K7RA Solar Update

    The average daily sunspot numbers dropped nearly 23 points to 15.6 this week, and geomagnetic indices were quiet. The average daily solar flux was 78.1, but the latest prediction from USAF and NOAA calls for rising solar flux values. The September 17-23 p
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